Automobile draft appliance.



R. N. CRANFORD.

AUTOMOBILE DRAFT AFPLIANCE. APPLlC'TiON FILED MAR. 24. 1-915. 123%11f1 Patented. July 24, 1917.

Wieviele"V legible lppl'leaton filed. U

Weiiliog' m3 -fu i ineens for Starting en mitomobile mf ien, stalled in mud, snow, or ether eltnlfiliene Wliei'e the normal adhesion between tallo :md the gremial is iiemlioien; lo move Salio een number eff :inline im? diie l i.

purpose lim/e liereteloxfe been d f v ieee, wherein geriei'elly, e. rope oteeliefl A l to e Climent Smilie oi' otliei 'lixeal point, o. thence .leading mound the limb of' el! e Wl) @incl etteeliecl tolie Wheel, eo their, when 'lle Wlieel iss driven .by elle mooi7 the rope is wound. up ou. #alie heb and thereby 'the nece smi-y ziective effort applied to 'Fie mille-mobile to lee it of the obs'mv'ucion. lo, Some instances these Winding hubs in Elie jrfoixoe of attachments which :we carried in elle cai'- ancl liestcnml to the Wheel when :oeeeesery to eziricate the oai'. fin ell glie prior Llevieee with which ll am familier, oiieend of lle rope has been e'mclied to "alie rl'iiven Wheel,

enel the operator steile-lille motor, connecte it with. the Wheel and the sudden Winding' up of the rope on the hub is expected to move 'lie ce1'. These prier devices are objeelioib able nel; only because they illi'equenly 13equice elle carrying' of extra, pelis, but also because liejy elo not enable elle emotive elor; eo be applied. gifzirluelly to "the etellecl een,

Limi' dell o'ilv i ei" the eope in e Should emmoimtel Slowly, ffy ini'feiif lien minimis e elixe l Cell gygsj hul),

which has disiiecive elwe which (miu e double colice've elle? ln oeliee woede, it would, be sulielmniil-ljf elle ferm oi? We cones meging ai; the apex, mie end olE alle i'ope being conu nected to Jzlie fixed clief'selot point according "Lo common cuei'oim il intermediate poroli of fh rope being coiled Acl elle heb and the fece end o1 he rope heilig; trollefl eiliei by e o nggei Mie ce?? o1; by :i person on @lie @Wing te elle double conical erm e ub elle coils 'enfl himl simili "meeuw L ,o ecicli o-Llie enel the limb *when liei'oie sive' l, nml the n j u ,1 l y lso 'the glie rope. Sie e c* i be held in Y een my veij; eligm ueif sion on Clie i-egre and yet the 'rope een be re'- fl sinlioiencly .eo 'me lml') will s ip inside ilie oeils in lie en ine slioulf7 iiiifeueiom it lev stall and it is necessary to again start the operation. A further advantage of theinvention is that no appliances, other than the rope, need be carried, as the hub can be made by the manufacturer of the proper shape and strength, requiring no material increase in size over the average hub. -lt can also be of ornamental appearance at the same time. The invention is shown in the accompanying drawing, wherein-fv Figure l is an elevation showing the invention' in operation;

Fig. 2 is a detailed side elevationffoif the ceiling ot the rope on the hub, and

Fig. 3 is an elevation of the hub looking toward the rear.v

li represents the automobile havingr a rear wheel 2, provided with the gypsy hub 3, which consists oit opposite coned or circular surfaces 4, 5,'constituting a gypsy, 6 represents the fixed end oit the rope, Which f may be directly attached to a stake or other fixed point 7, but as shown herein' leads around a bloei; 8 attached to the stake 7, and is then ,attached to the trent aule 9, ot' the car. The front aule' et the car is alsol provided with al guide l@ .through which the y rope leadsandia similar guideil is under Tae the running board, 'so' that the rope 6 leads to theA gypsy huh Si clear ot the Wheel tire. 'ilhe rope is cuida-nilA around the gypsy hubu as shown in Fig.' 3, three. coils ordinarily being smhcient and-thence the free end l2 oit the rope leads upwardly sov as to he controlled by the-'passengerasshown in Fig. l. @if

course, instead otleadingtherope upwardly yto the passenger, it could be equallywell controlled it he. stood on the ground outside the car. Itis preferable to have the rope controlled byv soule one on the car, as he canthen he toldk by the driver or can tell for himself' just how to pull on'the rope.

ln operation, the rope being fixed at one end as shown and the other cui being free and manually controlled, the motor of the Acar is started by the driver and connected to the Wheel, which carries the gypsy hub.` As the Wheel beginsi to turn, owing to the slip, the portion l2 of the rope is stretched which causes its coils to closely bind on each,

other and at the same time, owing to the conical hub surface closely bind on the hub., Thus the tractive torce is applied through the rope to the car and it necessarily inet/es. Many cars have diifierentially driven Wheels,

rand in actual'experience, it is; found that in many instances, the car can be moved Without blocking the differential, because as soon as one Wheel begins to roll, the other Wheel Will alsoyroll and 'in many instances taire hold andI help drive the car.. lli not, it is a simple ymatter to use this invention by blocking the other Wheel, or by winding a rope on the gypsy hubsof both Wheels.` At

ter the rcar has commenced to move, thereu may be obstructions such as boulders or logs to he overcome, and this can he accomplished without liability of breaking springs by: relening' the tension Vori-the rope l2 so that there will be some slip between ,the gypsy hub and the rope. ln other words, by this invention, it is possiblenot only to apply the power gently, which prevents stalling the motor, straining the Lgears, or breaking the rope, but the power can also loe-controlled at any point of thenioveinent hy the tension of the rope, which is not possible Withpriordevices.

By this invention, it will be seen that there is provided in addition to means oifinirtl ing` a stalled automobile 'hy its ownpower,

manually controlled ineens for tarying the tractive -eii'ort inde endently 'ci the speed of the motor, instead of as in prior deviceskonly being able to vary the tractiye cheri;

by changing the motor speed. lit aise be seen that as the Wheels begin to drive naturally, it is only necessary to pull inthe free end of the rope faster in orderto keep the rope tight and prevent it from becoming: entangled in' the Wheels; ln prior Wlienr the Wheels began to drive naturally the rope slacliens up and is liable to become entangled up in the Wheels yand the rv e" gear of the automobile.

Having thus described my invention, what l declare as new and desire to secure by Letters Patent of the United States is l. ln combination, an automobile having one'oi' its rear Wheel hubs formed integrally as' a gypsy Winding drum, a guide eyelet icc' fixed unden the running board in front of 2. in combination, an automobile having an integral, outer hub, (said hub having double conoidal form with one base in the plane ci the Wheel and the other hase parallel thereto and forming the outer face ed 'the huh and with the intermediate portion bounded rby asin-facenti revelution for which each element made by an axialv section is a smooth curve concave outwardly-,troncthe axis, and a cable Wound on said drum but notl otherwise fastened thereto, one end part Vot said cable entenng from the drum to e point Where it can be. conveniently i'nanipulated and the other part extending from said drum forward to a lined point outside the t automohile. v

Legame 3. ln combination, an automobile having part of said cable extending to a point Where lo one of its rear Wheel hubs formed integrally it can be conveniently manipulated. as a gypsy winding drum, a cable Wound on n testimony whereof aiix my signature, said drum butEl mt otheiwis) 1fastened there inpresence of two Witnesses. to, and a gui e or Sai ca e on a part o the automobile forward of said rear Wheel, RALPH N CRANFORD" one end part of said cable extending through Witnesses: x said guide and engaging a fixed support in A K. Gr. LE Ano, front of the automobile and the other end ARTHUR ALTEN, Jr. 

